Trifluoroacetic acid → 1h-Indole-2-carboxylic acid,1-[(4-nitrophenyl)methyl]-3-phenyl-,ethyl ester

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1-(4-Nitro-benzyl)-3-phenyl-1H-indolecarboxylic acid ethyl ester was prepared from of 3-phenyl-1H-indolecarboxylic acid ethyl ester and 4-nitrobenzyl bromide followed the procedure of Example 3 Step 1 as a yellow powder: 1H NMR (DMSO-d6) δ 1H NMR (DMSO-d6) δ 0.91 (t, J=7.2 Hz, 3H), 4.05 (q, J=7.2 Hz, 2H), 5.97 (s, 2H), 7.17-7.23 (m, 1H), 7.32 (d, J=8.8 Hz, 2H), 7.36-7.42 (m, 1H), 7.38-7.42 (m, 1H), 7.45-7.48 (m, 4H), 7.52 (d, J=8.2 Hz, 1H), 7.62 (d, J=8.2 Hz, 1H), 8.19 (d, J=8.8 Hz, 2H); MS (ESI) m/z 401 (MH+); 399 ([M−H]−); HRMS calcd for C24H21N2O4: 401.1490; found (ESI+): 401.1494; Anal. calcd for C24H20N2O4.0.05 TFA C, 71.99; H, 5.03; N, 7.00 Found: C, 71.27; H, 4.98; N, 6.90.

Provenance & Evidence